APA

Howard J. T., . (1948). The world's great operas. New York: Grosset & Dunlap.

Chicago

Howard John Tasker, . 1948. The world's great operas. New York: Grosset & Dunlap.

Harvard

Howard J. T., . (1948). The world's great operas. New York: Grosset & Dunlap.

MLA

Howard John Tasker, . The world's great operas. New York: Grosset & Dunlap. 1948.